.navbar-inner {
    border-radius: 0;
}
#categories_tree {
    border: 1px solid;
    padding: 0 10px 10px 0;
    overflow-x: auto;
}
#edit_category_container {
    border: 1px solid #ddd;
    padding: 15px;
    position: relative;
    top: -40px;
}